A Study to Assess the Efficacy and Safety of ABTL0812 (Endolung)

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A phase I/ II, open label study to assess the efficacy and safety of ABTL0812 in combination with paclitaxel and carboplatin in patients with advanced endometrial cancer or squamous NSCLC.

Condition or disease

Intervention/treatment

Phase

Endometrial CancerSquamous Non-Small Cell Lung Cancer

Drug: ABTL0812 in combination with paclitaxel and carboplatin

Phase 1Phase 2

Detailed Description:

This is a phase I/II multicenter divided in two phases.

Phase I: Safety and dose escalation

This study is not randomized, and all included patients will receive ABTL0812 in addition to paclitaxel + carboplatin (SOC). In this phase, patients can be selected from both indications, regardless of the number of each indication.

This phase will be divided in 2 periods:

Period 1:

A dose de-escalation phase will be performed with a 3 + 3 design, in which up to four different ABTL0812 dose levels will be tested in combination with SOC. Then, 12 patients will be included in an expansion phase. All patients will receive one week of ABTL0812 alone followed by ABTL0812 + SOC (up to 8 SOC cycles) as combined treatment.

Period 2:

After the finalization of the SOC cycles, ABTL0812 will be taken as single therapy, at 1300 mg tid, up to 12 months from initiation of period 1. This is the Recommended Phase 2 Dose (RP2D) as monotherapy for ABTL0812 determined in the previous phase I clinical trial.

Phase II: Efficacy and safety

This phase of the study will include up to 33 patients per indication (up to 66 patients overall). The final number will depend on the number of patients included in the phase I. The number of patients selected per indication will depend on the number already selected in phase I, as it is necessary to compensate both indications to have a final number of 40 patients per indication approximately.

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Layout table for eligibility information

Ages Eligible for Study:

18 Years and older (Adult, Older Adult)

Sexes Eligible for Study:

All

Accepts Healthy Volunteers:

No

Criteria

Inclusion Criteria:

Patients ≥18 years of age

Willing and able to provide informed consent

For endometrial cancer: Patients with advanced, metastatic or recurrent endometrial cancer, from all histological types except carcinosarcoma and leiomyosarcoma.

Have adequate tumor tissue available (either archival not older than 6 months or new tumor biopsy) for biomarker analyses. The most recently collected tumor tissue sample should be provided, if available.

Life expectancy ≥ 12 weeks in the opinion of the investigator

Measurable disease per Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1 guidelines with at least one "target lesion" to be used to assess response. Tumors within a previously irradiated field will be designated as "non-target" lesions unless progression is documented.

Eastern Cooperative Oncology Group (ECOG) Performance Status 0-1

Contraception: All female patients will be considered to be of childbearing potential unless they are postmenopausal (at least 12 months' consecutive amenorrhea, in the appropriate age group and without other known or suspected cause), or have been sterilized surgically. Female patients of childbearing potential must agree to use two forms of highly effective contraception methods during the study and for a period of 6 months following the last administration of the study drug. Male patients and their female partners, who are of childbearing potential and are not practicing total abstinence, must agree to use two forms of highly effective contraception during the study and for a period of 6 months following the last administration of the study drug.

Adequate bone marrow function defined as:

absolute neutrophil count ≥ 1.5x109/L

platelet count ≥ 100x109/L

hemoglobin ≥ 10.0 g/dL

Total bilirubin ≤ 1.5 x upper limit of normal

Aspartate transaminase (AST) ≤ 2.5 times upper limit of normal (ULN) (≤5 times the ULN in patients with evidence of liver metastases)

Alkaline phosphatase ≤ 2.5 times ULN (≤5 times the ULN in patients with evidence of liver metastases)

Glomerular filtration rate ≥ 50 mL/min

Serum creatinine ≤1.5 ULN

Toxicities incurred as a result of previous anticancer therapy (radiation therapy, chemotherapy, or surgery) must be resolved to ≤ grade 1 (as defined by Common Terminology Criteria for Adverse Events version 4.02).

Ability and willingness to comply with study visits, treatment, testing, and to comply with the protocol

Patients previously treated with adjuvant or co-adjuvant chemotherapy administered 6 months or less in advance of patient inclusion

Patients with symptomatic brain metastases. Patients with asymptomatic and treated brain metastases can be included in the study if they are kept on stable doses of steroids for a period of 1 month prior to study entry provided they don't have peripheric neuropathy grade 2 or superior.

Patients with gastrointestinal abnormalities including inability to take oral medications, malabsorption syndromes or other clinically significant gastrointestinal abnormalities that may impair the absorption of the investigational medicinal product.

Pregnancy or lactation. Serum pregnancy test to be performed within 7 days prior to study treatment start.

Patients with active Hepatitis B or C or human immunodeficiency virus (HIV) infection with non-controlled disease according to the treating physician.

Patients with any other medical conditions (such as psychiatric illness, infectious diseases, abnormal physical examination or laboratory findings) that in the opinion of the investigator may interfere with the planned treatment, affect patient compliance or place the patient at high risk from treatment-related complications.